Vulnerability CVE-2024-35915
Published: 2024-05-19

Description:
In the Linux kernel, the following vulnerability has been resolved:

nfc: nci: Fix uninit-value in nci_dev_up and nci_ntf_packet

syzbot reported the following uninit-value access issue [1][2]:

nci_rx_work() parses and processes received packet. When the payload
length is zero, each message type handler reads uninitialized payload
and KMSAN detects this issue. The receipt of a packet with a zero-size
payload is considered unexpected, and therefore, such packets should be
silently discarded.

This patch resolved this issue by checking payload size before calling
each message type handler codes.

 References:
https://git.kernel.org/stable/c/11387b2effbb55f58dc2111ef4b4b896f2756240
https://git.kernel.org/stable/c/03fe259649a551d336a7f20919b641ea100e3fff
https://git.kernel.org/stable/c/755e53bbc61bc1aff90eafa64c8c2464fd3dfa3c
https://git.kernel.org/stable/c/ac68d9fa09e410fa3ed20fb721d56aa558695e16
https://git.kernel.org/stable/c/b51ec7fc9f877ef869c01d3ea6f18f6a64e831a7
https://git.kernel.org/stable/c/a946ebee45b09294c8b0b0e77410b763c4d2817a
https://git.kernel.org/stable/c/8948e30de81faee87eeee01ef42a1f6008f5a83a
https://git.kernel.org/stable/c/d24b03535e5eb82e025219c2f632b485409c898f
Copyright 2026, cxsecurity.com

 

Back to Top